smartgwt listgrid RestDataSource未填充 [英] smartgwt listgrid RestDataSource not populating
问题描述
我是使用此前端框架应用程序的新手...
Im new using this front end framework application...
我最近开始与smartgwt一起工作，并且正在与Spring MVC集成一起构建新的应用程序。
I recently started to work with smartgwt and i'm bulding a new application with a Spring MVC integration.
我正在使用带有RestDataSource的ListGrid（使用具有 mvc：annotation-driven 的Rest服务（用于纯JSON）
I'm using a ListGrid with a RestDataSource (Consume the Rest service with mvc:annotation-driven for plain JSON)
我可以看到servaice正确使用了，也许我的网格永远都没有显示数据。
I can see that the servaice gets consuming properly perhaps my grid is never shown with the data in it.
有人可以在这里帮我吗？
Can someone help me here ?
这是我的 ListGrid 类
Here's my ListGrid class
公共类ListGrid扩展了com.smartgwt.client.widgets.grid.ListGrid {
public class ListGrid extends com.smartgwt.client.widgets.grid.ListGrid {
private final SpringJSONDataSource springJSONDataSource;
public ListGrid(List<DataSourceField> fields) {
this(new PatientDataSource(fields));
}
public ListGrid(SpringJSONDataSource springJSONDataSource) {
this.springJSONDataSource = springJSONDataSource;
init();
}
private void init() {
setAutoFetchData(true);
setAlternateRecordStyles(true);
setEmptyCellValue("???");
setDataPageSize(50);
setDataSource(springJSONDataSource);
}
}
现在有数据源实现
Now there's the DataSource implmentation
公共抽象类SpringJSONDataSource扩展了RestDataSource {
public abstract class SpringJSONDataSource extends RestDataSource {
protected final HTTPMethod httpMethod;
public SpringJSONDataSource(List<DataSourceField> fields) {
this(fields, HTTPMethod.POST);
}
public SpringJSONDataSource(List<DataSourceField> fields, HTTPMethod httpMethod) {
this.httpMethod = httpMethod;
setDataFormat(DSDataFormat.JSON);
addDataSourceFields(fields);
setOperationBindings(getFetch());
addURLs();
}
private void addURLs() {
if(getUpdateDataURL() != null)
setUpdateDataURL(getUpdateDataURL());
if(getRemoveDataURL() != null)
setRemoveDataURL(getRemoveDataURL());
if(getAddDataURL() != null)
setAddDataURL(getAddDataURL());
if(getFetchDataURL() != null)
setFetchDataURL(getFetchDataURL());
}
private void addDataSourceFields(List<DataSourceField> fields) {
for (DataSourceField dataSourceField : fields) {
addField(dataSourceField);
}
}
protected abstract OperationBinding getFetch();
protected abstract OperationBinding getRemove();
protected abstract OperationBinding getAdd();
protected abstract OperationBinding getUpdate();
public abstract String getUpdateDataURL();
public abstract String getRemoveDataURL();
public abstract String getAddDataURL();
public abstract String getFetchDataURL();
}
扩展SpringJSONDataSource的PatientDataSource类
The class PatientDataSource that extends SpringJSONDataSource
公共类PatientDataSource扩展SpringJSONDataSource {
public class PatientDataSource extends SpringJSONDataSource {
public PatientDataSource(List<DataSourceField> fields) {
super(fields);
setPrettyPrintJSON(true);
}
@Override
protected OperationBinding getFetch() {
OperationBinding fetch = new OperationBinding();
fetch.setOperationType(DSOperationType.FETCH);
fetch.setDataProtocol(DSProtocol.POSTMESSAGE);
DSRequest fetchProps = new DSRequest();
fetchProps.setHttpMethod(httpMethod.toString());
fetch.setRequestProperties(fetchProps);
return fetch;
}
@Override
public String getFetchDataURL() {
return "/spring/fetchPatients";
}
@Override
protected OperationBinding getRemove() {
return null;
}
@Override
public String getRemoveDataURL() {
return null;
}
@Override
protected OperationBinding getAdd() {
return null;
}
@Override
public String getAddDataURL() {
return null;
}
@Override
protected OperationBinding getUpdate() {
return null;
}
@Override
public String getUpdateDataURL() {
return null;
}
}
我的弹簧控制器PatientControler
My spring controller PatientControler
@Controller
公共类PatienController {
@Controller public class PatienController {
Logger logger = Logger.getLogger(PatienController.class);
@Autowired
private PatientServices patientServices;
@RequestMapping(value = "/patientTest", method = RequestMethod.GET)
@ResponseBody
public Object getTest()
{
return patientServices.getAllPatients();
}
@RequestMapping(value = "/fetchPatients", method = RequestMethod.POST)
@ResponseBody
public Object getAllPatients()
{
return patientServices.getAllPatients();
}
}
PatientServiceImpl
PatientServiceImpl
公共类PatientServicesImpl实现PatientServices {
public class PatientServicesImpl implements PatientServices {
public List<Patient> getAllPatients() {
List<Patient> patients = new ArrayList<Patient>();
Patient patient;
for(int i = 0 ; i < 500 ; i++){
patient = new Patient();
patient.setDateOfBirth(new Date());
patient.setFirstName("Joe");
patient.setMiddleName("Moe");
patient.setLastName("Blow");
patient.setLastConsultation(new Date());
patient.setSex(Sex.M);
patients.add(patient);
}
return patients;
}
}
* 我现在真的很卡住，我一直在寻找所有类型的答案....但是到目前为止，当我尝试从RestDataSource实例化参数 data作为对象来覆盖transformResponse时，什么都没起作用，返回了我数组[object Object]，[object Object]，[object Object]，[object Object]，[object Object] *
推荐答案
从RestDataSource传输的数据具有 RestDataSource的JavaDoc
您的服务器必须了解该请求并发送回有效的响应。
The Data which is transferred from the RestDataSource has a specific format which is described in the JavaDoc of the RestDataSource Your server must understand the request and send back a valid response.
目前，您的示例似乎还没有履行合同。
At the moment your example doesn't seem to honour the contract.
要调试往返服务器的流量，可以使用SmartClient-Console。您可以通过如下浏览器书签打开它：
To debug the traffic send to and from your server you can use the SmartClient-Console. You can open it by a browser bookmark like this:
javascript:isc.showConsole()
原因是，您需要通过在 gwt.xml
Of cause you need to deploy this console by adding the following module to your gwt.xml
<inherits name="com.smartclient.tools.SmartClientTools"/>
现在转到 RPC 标签并选中 Track-RPC
这篇关于smartgwt listgrid RestDataSource未填充的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
